2100131210023 has 32 divisors (see below), whose sum is σ = 2711689436160. Its totient is φ = 1578253205760.

The previous prime is 2100131209933. The next prime is 2100131210033. The reversal of 2100131210023 is 3200121310012.

It is not a de Polignac number, because 2100131210023 - 2¹⁷ = 2100131078951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100131209979 and 2100131210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100131210033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1450515 + ... + 2510827.

It is an arithmetic number, because the mean of its divisors is an integer number (84740294880).

Almost surely, 2^{2100131210023} is an apocalyptic number.

2100131210023 is a deficient number, since it is larger than the sum of its proper divisors (611558226137).

2100131210023 is a wasteful number, since it uses less digits than its factorization.

2100131210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061247.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2100131210023 its reverse (3200121310012), we get a palindrome (5300252520035).

The spelling of 2100131210023 in words is "two trillion, one hundred billion, one hundred thirty-one million, two hundred ten thousand, twenty-three".